[PDF] Top 20 Verified Proofs of Higher-Order Masking

... of masking, by showing that the number of queries needed to recover a sensitive bit is at least exponential in the masking order t in a noisy leakage ... See full document

... [1] Gilles Barthe, Sonia Bela¨ıd, Fran¸ cois Dupressoir, Pierre-Alain Fouque, Benjamin Gr´ egoire, and Pierre-Yves Strub. Verified proofs of higher-order masking. In Elisa- beth Oswald ... See full document

... the masking countermeasure in hardware is a delicate ...Oriented Masking (DOM), the Unified Masking Approach (UMA) and Generic Low Latency Masking ...software-oriented masking, these ... See full document

... in order to save two nonlinear gates compared to the original ...our masking scheme defined in Sect. 5.4. Because our masking schemes require roughly the same number of AND gates to secure for both ... See full document

... security order d of a masking scheme is defined as the smallest number of d + 1 intermediate values that, considered jointly, are not independent of a sensitive variable ...d-th order masking ... See full document

... a higher dimensional feature space within which to perform the discriminant analysis, thereby extracting non-linear combinations of the sort that (in the case of DPA) do yield sensitive information on further ... See full document

... in order to state the security guarantee of masking in both general and rigorous ...by masking against actual leakages, typically made of a noisy but arbitrary function of the target device’s ... See full document

... Our contributions. Our first contribution is to describe a new HODPA tai- lored to target the table recomputation despite a highly entropic masking (unex- ploitable by exhaustive search). More precisely, we ... See full document

... the higher the order d of a HO-CPA attack, the greater the impact of the ...the masking CM so that the zero-offset HO-CPA fails for orders J1, dK, with d being as high as ... See full document

... of masking schemes with output-dependent probes. In order to prove the security of our masked implementation we see that we reveal some public value r or a commitment of ...the proofs of security are ... See full document

... t-SNI Security. Recently, a refined security definition under the ISW probing model was introduced in [BBD + 16], called t-SNI security. The t-SNI security definition enables to prove that a gadget can be used in a full ... See full document

... information structure, and ( X t ) to be an adapted market process. For expediency we limit ourselves to the basic equity setting, with X t as the price at time t of a stock or index, with the money-market account as ... See full document

... In order to cast her vote, first the voter encrypts her vote into a single ElGamal ciphertext (2 exponentiations) 8 ...formedness proofs obtained from the others, requiring 11(N − 1) ...voters’ ... See full document

... the proofs of soundness and completeness of our theory with respect to contextual equivalence that preserves only parallel contexts, and Section 7 proves that our theory is fully abstract with respect to the full ... See full document

... 6 higher-order constructs developed to measure the wide array of factors that influence both an individual’s endorse- ment of and objection to evolutionary ...therefore verified structure and pattern ... See full document

... Abstract. Higher-order differential power analysis attacks are a seri- ous threat for cryptographic hardware ...with masking. The existing higher-order masking countermeasures ... See full document

... so our success chance for one selection of constraints is P(130, 98, 97) ≈ 2 −32.0 . Even though the available selections of constraints are not independent, we verified experimentally that the measured ... See full document

... Hence, it can be assigned to a fresh random value. In order to prove SNI, we still have to simulate the ob- served output values for rows on which no internal values are observed. Remarking that simulating the ... See full document

... At Crypto 2003, Ishai, Sahai and Wagner introduced in their seminal pa- per [ISW03] the so-called probing model. In this model, the adversary is allowed to probe a limited number of wires in a target (protected) circuit. ... See full document

... We show that n ≥ 2t + 1 is sufficient to achieve security against t-th order attacks in both models. In particular, this improves the bound n ≥ 4t + 1 from [ISW03] for stateful circuits. 5 We get an improved bound ... See full document